chore(deps): update xunit-dotnet monorepo (#60)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/directory.packages.props

@@ -35,9 +35,9 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageVersion Include="xunit" Version="2.8.1" />
-    <PackageVersion Include="xunit.analyzers" Version="1.14.0" />
-    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.1" />
+    <PackageVersion Include="xunit" Version="2.9.0" />
+    <PackageVersion Include="xunit.analyzers" Version="1.15.0" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />
     <PackageVersion Include="coverlet.collector" Version="6.0.2" />
   </ItemGroup>
   <Import